./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:43:34,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:43:34,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:43:34,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:43:34,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:43:34,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:43:34,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:43:34,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:43:34,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:43:34,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:43:34,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:43:34,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:43:34,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:43:34,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:43:34,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:43:34,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:43:34,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:43:34,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:43:34,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:43:34,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:43:34,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:43:34,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:43:34,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:43:34,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:43:34,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:43:34,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:43:34,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:43:34,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:43:34,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:43:34,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:43:34,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:43:34,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:43:34,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:43:34,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:43:34,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:43:34,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:43:34,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:43:34,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:43:34,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:43:34,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:43:34,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:43:34,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 03:43:34,199 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:43:34,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:43:34,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:43:34,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:43:34,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:43:34,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:43:34,202 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:43:34,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:43:34,203 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:43:34,203 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:43:34,204 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:43:34,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:43:34,205 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:43:34,205 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:43:34,206 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:43:34,206 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:43:34,206 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:43:34,207 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:43:34,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:43:34,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:43:34,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 03:43:34,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:43:34,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:43:34,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:43:34,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:43:34,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:43:34,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:43:34,210 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 03:43:34,211 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:43:34,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:43:34,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:43:34,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:43:34,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:43:34,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:43:34,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:34,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:43:34,214 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:43:34,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:43:34,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:43:34,215 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:43:34,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:43:34,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:43:34,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:43:34,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2022-11-03 03:43:34,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:43:34,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:43:34,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:43:34,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:43:34,665 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:43:34,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-03 03:43:34,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/data/e7ac7fcba/b458e53db66148f1aa63789190c89416/FLAGe907613e7 [2022-11-03 03:43:35,524 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:43:35,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-11-03 03:43:35,556 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/data/e7ac7fcba/b458e53db66148f1aa63789190c89416/FLAGe907613e7 [2022-11-03 03:43:35,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/data/e7ac7fcba/b458e53db66148f1aa63789190c89416 [2022-11-03 03:43:35,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:43:35,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:43:35,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:35,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:43:35,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:43:35,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:35" (1/1) ... [2022-11-03 03:43:35,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29860e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:35, skipping insertion in model container [2022-11-03 03:43:35,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:43:35" (1/1) ... [2022-11-03 03:43:35,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:43:35,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:43:36,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:36,589 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:43:36,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:43:36,726 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:43:36,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36 WrapperNode [2022-11-03 03:43:36,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:43:36,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:36,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:43:36,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:43:36,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,801 INFO L138 Inliner]: procedures = 371, calls = 34, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 231 [2022-11-03 03:43:36,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:43:36,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:43:36,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:43:36,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:43:36,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:43:36,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:43:36,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:43:36,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:43:36,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (1/1) ... [2022-11-03 03:43:36,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:43:36,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:36,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:43:36,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15bfaf91-98d5-4bfb-b780-3b8fd435d212/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:43:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:43:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:43:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:43:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:43:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:43:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 03:43:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:43:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:43:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:43:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 03:43:36,975 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 03:43:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:43:36,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:43:36,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:43:36,978 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 03:43:37,220 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:43:37,222 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:43:37,917 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:43:37,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:43:37,933 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:43:37,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:37 BoogieIcfgContainer [2022-11-03 03:43:37,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:43:37,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:43:37,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:43:37,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:43:37,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:43:35" (1/3) ... [2022-11-03 03:43:37,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaa9b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:37, skipping insertion in model container [2022-11-03 03:43:37,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:43:36" (2/3) ... [2022-11-03 03:43:37,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaa9b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:43:37, skipping insertion in model container [2022-11-03 03:43:37,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:43:37" (3/3) ... [2022-11-03 03:43:37,949 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2022-11-03 03:43:37,959 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 03:43:37,970 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:43:37,970 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-03 03:43:37,970 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 03:43:38,099 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 03:43:38,158 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 03:43:38,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 278 transitions, 561 flow [2022-11-03 03:43:38,178 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 278 transitions, 561 flow [2022-11-03 03:43:38,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 278 transitions, 561 flow [2022-11-03 03:43:38,380 INFO L130 PetriNetUnfolder]: 4/277 cut-off events. [2022-11-03 03:43:38,381 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 03:43:38,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 277 events. 4/277 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 151. Up to 2 conditions per place. [2022-11-03 03:43:38,397 INFO L118 LiptonReduction]: Number of co-enabled transitions 6512 [2022-11-03 03:44:12,868 WARN L234 SmtUtils]: Spent 13.27s on a formula simplification. DAG size of input: 141 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:44:30,718 WARN L234 SmtUtils]: Spent 13.82s on a formula simplification. DAG size of input: 141 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:44:41,260 WARN L234 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:44:46,402 WARN L234 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:45:07,971 WARN L234 SmtUtils]: Spent 14.85s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:45:20,690 WARN L234 SmtUtils]: Spent 12.72s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:45:34,761 WARN L234 SmtUtils]: Spent 14.07s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:45:45,393 WARN L234 SmtUtils]: Spent 10.63s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:49:00,260 WARN L234 SmtUtils]: Spent 3.25m on a formula simplification. DAG size of input: 261 DAG size of output: 252 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:50:26,271 WARN L234 SmtUtils]: Spent 1.43m on a formula simplification that was a NOOP. DAG size: 238 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:53:48,353 WARN L234 SmtUtils]: Spent 3.37m on a formula simplification. DAG size of input: 261 DAG size of output: 252 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:55:02,685 WARN L234 SmtUtils]: Spent 1.24m on a formula simplification that was a NOOP. DAG size: 238 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 03:58:14,379 WARN L234 SmtUtils]: Spent 3.19m on a formula simplification that was a NOOP. DAG size: 320 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)